US PATENT SUBCLASS 433 / 92
.~.~ And suction pump or material separator
Current as of:
June, 1999
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Terms of Use
433 /
HD
DENTISTRY
25
DF
APPARATUS
{20}
91
DF
.~ Having suction orifice {5}
92
.~.~ And suction pump or material separator
DEFINITION
Classification: 433/92
And suction pump or material separator:
(under subclass 91) Apparatus including either (a) means for creating subatomospheric pressure at the nozzle, or (b) means for recovering and retaining the removed material from the air current.